University of Isfahan Petrological Journal 2228-5210 1 1 2010 05 22 Mineralization study on iron ores from Qatruyeh area, northeast Neyriz, Sanandaj-Sirjan zone using hydrothermal alteration evidences and fluid inclusion studies Mineralization study on iron ores from Qatruyeh area, northeast Neyriz, Sanandaj-Sirjan zone using hydrothermal alteration evidences and fluid inclusion studies 67 86 16032 FA Mohammad Ali Rajabzadeh شیراز- چهار راه ادبیات- دانشکده علوم-بخش علوم زمین Sina Asadi Journal Article 2016 06 14 Field, mineralogical and geochemical investigations indicate that Qatruyeh area, northeast Neyriz, has experienced two different stages of metasomatic-hydrothermal alterations with dominance of magnetite mineralization. Replacement textures and mineral assemblages in host rock reveal that the mineralization and hydrothermal alteration occurred in two stages. The first stage of alteration includes of Na-Ca alteration accompanying magnetite ores with mineral paragenesis of Paragonite + Siderite + Titanite + Tourmaline ± Tremolite ± Pyrite ± Chalcopyrite. Na-Ca alteration related to epigenetic ore mineralization tends to be developed in deeper levels along bedding. The second stage indicates a sericitic-propylitic alteration which occurred with widespread veins and veinlets of hematite. Mineral paragenesis consists of sericite + quartz + epidote + chlorite ± magnetite. Analytical data on metacarbonate host rock show that LILEs and REEs were depleted whereas HFSEs were enriched during the alterations. Data from fluid inclusions suggest that low grade magnetite ores were deposited at temperatures between 180 and 435oC and pressures Field, mineralogical and geochemical investigations indicate that Qatruyeh area, northeast Neyriz, has experienced two different stages of metasomatic-hydrothermal alterations with dominance of magnetite mineralization. Replacement textures and mineral assemblages in host rock reveal that the mineralization and hydrothermal alteration occurred in two stages. The first stage of alteration includes of Na-Ca alteration accompanying magnetite ores with mineral paragenesis of Paragonite + Siderite + Titanite + Tourmaline ± Tremolite ± Pyrite ± Chalcopyrite. Na-Ca alteration related to epigenetic ore mineralization tends to be developed in deeper levels along bedding. The second stage indicates a sericitic-propylitic alteration which occurred with widespread veins and veinlets of hematite. Mineral paragenesis consists of sericite + quartz + epidote + chlorite ± magnetite. Analytical data on metacarbonate host rock show that LILEs and REEs were depleted whereas HFSEs were enriched during the alterations. Data from fluid inclusions suggest that low grade magnetite ores were deposited at temperatures between 180 and 435oC and pressures https://ijp.ui.ac.ir/article_16032_bc2f6efaa2f8d4a78b5e3eb2c694e086.pdf